Machine for cutting paper into shavings, strips, &amp;c.



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PATENTED OCT. l0, 1905.

A. HENDERSON. TTING PAPER INTO SHAVINGS, STRIP S, &c. APPLIOA'HON FILED APR. x2, 1904. a sums-SHEET 2.

MACHINE POR GU vNo. 301,790.

A. HENDERSON.

MACHINE FOR GUTTING'PAPEN INT0 smv APPLI'GATION FILED APB..12. 1904.

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UNITED' sTATEs PATENT oEEIoE.

ALEXANDER HENDERSON, OF EDINBURGH, SCOTLAND, ASSIGNOR OF ONE- HALF TO GEORGE DUNCAN MACKAY, OF EDINBURGH, SCOTLAND.

MACHINE FOR CUTTING PAPER INTO SHAVINGS, STRIPS, 6to.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed April 12, 1904. Serial No. 202,749.

To all whom it may concern:

Be it known that I, ALEXANDER HENDER- soN, engineer, a subject of the King of the United Kingdom of Great Britain and Ireland, and a resident of 172 Easter road, Edinburgh, in the county of Mid-Lothian, Scotland, have invented new and useful Improvements in Machines for Cutting Paper into Shavings, Strips, and the Like, of which the following is a description.

This invention relates to a machine for cutting paper into shavings, strips, and the like, such as are used in packing confectionery and other goods.

Figure 1 is a side elevation of the machine. Fig. 2, a plan; Fig. 3, a sectional end elevation taken on line 1 2 of Fig. 2 looking to the left hand; Fig. 1, a sectional end elevation taken on line 3 4L of Fig. 2 looking to the right hand; Fig. 5, an end elevation of the left-hand side of Figs. 1 and 2; Fig. 6, a longitudinal sectional elevation, on an enlarged scale, of the rotating knife-carrier and knives;

Fig. 7, an end view thereof; Fig. 8, a plan view of the knife and knife-carrier, showing the angle of same; Fig. 9, a detail of a bracket hereinafter referred to; Fig. 10, a side elevation of a paper-roll, showing the carrying-centers inserted therein; Fig. 11, an end view of the center for the paper-roll.

In the machine for cutting paper into shavings I mount on the frame A, Fig. l, a series of paper-rolls B, the paper being drawn from each paper-roll through two pairs of dragrollers c and D and directed to a dead-knife.

E, at which point the paper is cut into shavings or strips, as desired, by the rotating knives F.

In the drawings eleven paper-rolls B are shown, so that eleven webs of paper will be cut simultaneously.

In order that the variousrnechanical motions be fully understood, I will set forth the actuation of the various parts.

Mounted in the housings C, supported on the frame A in advance of the paper-rolls B, are the drag-rollers c. The bottom roller of the pair of rollers is provided at one end with a spur-wheel o', which is given a motion of rotation by a spur-pinion c2, the pinion c2 being mounted on the shaft c3, which is supported on the bearings c, carried by the crossstay a of the frame A. The top roller of the pair of drag-.rollers c is given a motion of ro-w tation by means of the gear-wheels c5. Mo'- tion of rotation is imparted to the shaft c3 -by a belt-drive, as shown in Fig. 2, a speed-cone ssl c being secured to theend of the shaft cs for l particularly in the end sectional elevation Fig. p

3. The second or other pair of drag-rollers D are merely to assist the drag-rollers c in guiding the paper onto the dead-knife E, the said rollers D being driven at the same speed as the rollers c by means of the pulleys d and belt d', Fig. 2. The dead-knife E is mounted on the knife-carrier e, secured to each side of the frame A, as shown more particularly in dotted lines, Fig. 1.

The rotary knives F are mounted on the hexagonal end castings f, (shown more particularly in the enlarged detail Fig. 6,) the said castings being secured on the shaftf", which is mounted across the frame A and supported in the bearings f2., carried on the top of the said frames. The L-shaped metal bars f3 (shown more particularly in Fig. 7) act as distance-pieces when bolted to the hexagonal end pieces f, the knives F being bolted to the upright projecting portion f* of the L-shaped bars f3. Mounted on each end of the shaft f' outside the frame A are the pulleys F', which pulleys receive power from a beltdrive and impart rotation to the knives F. The end of the shaft f is also provided with a handwheel F2 for setting the knives preparatory to starting the machine. I also prefer that the knives F be ground While the paper is being cut, and to accomplish this I employ the emery-wheel G, carried by the bracket g. The said bracket g is supported by the screwed spindle g and spindle g2, which are carried in the bearings g3, supported by the frame A, and the arrangement of the bracket g is such that it slides from one side of the frame Ato the other side thereof, so that the Whole of the edge ofthe knifeF is ground. The bracket emery-wheel G, and mounted on the emerywheel spindle is the pulley g4, which is driven from the pulley and belt g5, the other end of the bracket g being forked for the reception ofthe pulley g5. The spindle g2, which receivesa motion of r'otation from the pulleybelt g", Fig. 2, is formed with a sunk keyway g?, and the bore of the pulley is provided with a key which slides in the keyway gf, the object being to allow the said pulley to slide on the spindle g2 as the emery-stone is traversed, Lut at the same time not to allow the said pulley to revolve loosely on the shaft.

The end of the spindle y', as shown in Figs. l and 2 and more particularly in Fig. 5, is provided with the three pulleys gs, g, and g1", actuated by the pulley I-l for the purpose of reversing the traverse of the emerywheel G through the medium of the screwed spindle g and the internally-screwed portion of the bracket g, which the spindle passes through. rI`he pulleys f/s and glo are fast pulleys, with the center pulley gi the loose one, and to obtain the reverse motion I employ a cross-belt, Figs. l and 2, the arrangement being such that the bracket g as it traverses to and fro actuates the belt-fork g by means of the stops g, Fig. 5, and pushes the belt being provided on the said spindle. The bearings for the journals of the spindles of the paper-rolls B are as shown in Figs. l and 2- that is to say, they are so arranged that a certain amount of tension can be put onto the journal of the spindle by tightening down the cap b2 by means of the nut b3.

In the plan Fig. 2 and situated between the grip-rollers c and D, I may employ one or more pairs of cutting-disks, such as K, for the purpose of cutting the paper into various widths, so that a longer or shorter shaving is produced, the said disks being mounted on the screwed spindles as shown more particularly in the section Fig. 4, which shows the arrangement for driving the said disks, the bottom and top spindles being geared together by means of the gear-wheels k', the top roller being so geared that it is slightly slower than the bottom one.

Fig. 9 shows anenlarged side elevation of the arrangement of the disks K with the griprollers e.

The position of the knives F is adjustable on the carriers-that is to say, relatively with the dead-knife E. Also the dead-knife may be adjusted. Also the emery-wheel may be adjusted.

Any number of disks, such as K, Figs. 2 and 4, may be mounted on the screwed spindle according to the size of paper required to be cut.

In lieu of cutting paper into shavings I may adapt the machine for cutting paper into strips or squares, such as are used for wrapping sweetmeats, soaps, and the like. To effect this, I remove one or more of the knives F, which allows more time between the cuts. Consequently a broader strip of paper is produced-that is to say, that the rotary disks K slitting or cutting the paper lengthwise and the knives F cutting the paper at right angles thereto, whereby rectangular, square, or oblong portions of paper are produced for wrapping purposes, as indicated above.

To further assist the grip-rollers c and D in conveying the paper from the rolls B to the dead-knife E, I may employ two endless belts driven by any suitable means litted between the grip-rollers c and D, the arrangement being such that the paper passes between the griprollers c, thence between the endless belt through the small grip-rollers D" to the dead-knife E.

I claim- 1. In a machine for cutting paper into narrow shavings, the combination of means for feeding paper from any desired number of rolls, paired dragrollers for drawing the paper through the machine., a transverse revolving shaft carrying a number of parallel blades working in conjunction with a stationary knife for cutting the paper into narrow shavings of desirable width and a revolving grinding-wheel moving transversely in contact with the said knives for sharpening the same during the cutting operation, substantially as described.

2. yIn a machine for cutting paper into shavings, the combination of means for feeding the paper from rolls, drag-rollers by which the paper is drawn through the machine, a transverse shaft carrying a number of parallel knives for cutting the paper transversely into narrow shavings, a rotary grinding-wheel working in contact with the transverse rotating knives to sharpen them during the cutting operation, a carrying-frame and transverse screw-shaft on which the grinding-wheel is mounted and automatic means for rotating the screw-shaft alternately in opposite directions and thereby moving the grinding-wheel back and forth across the machine, substantially as described.

ALEXANDER HENDERSON. [n s] Witnesses:

FREDERICK PIAT'r, GEORGE BRAID.

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